Jason Cross, PCWorld

If you think people couldn’t stop talking about Ultrabooks a few months ago, just wait until June. That’s when Intel will make available the dual-core version of the Ivy Bridge CPUs, ushering in a whole new wave of slim laptops. One such Ultrabook will be the new Asus Zenbook Prime UX31A, successor to the Zenbook that launched with the first Ultrabooks at the end of last year. We liked that system a lot, save for a few issues. With the Zenbook Prime UX31A, Asus seeks to address some of those.

I got my hands on a pre-production system that is nearly up to the quality standards of the final shipping units, or so I’m told. It’s really very nice. Much like the original Zenbook, it’s all metal with a very solid and rigid feel. The 13.3-inch UX31A weighs a little less than 3 pounds, and has a very small and light power adaptor. The left side provides access to a USB 3.0 port, headset jack, and SD card slot. The right has the power plug, another USB 3.0 port, mini-VGA, and mini-HDMI. As with other exceptionally thin Ultrabooks, you’ll have to use the included mini-to-VGA dongle to plug into a legacy display or projector. Asus supplies a USB-to-Ethernet adaptor for those needing wired connections, but the dual-band 802.11 a/b/g/n radio should provide good wireless throughput.

Illustration by Neil StevensMake Your Gmail Work for You

Your time is valuable. On the Gmail team, we work hard to offer a user ex­­perience that won't bog you down. But we also want to share some tips for be­­ing even more productive with Gmail.

Alex Gawley, Gmail Product ManagerFocus on search, not folders: Google was built on search, and we've aimed to bring that same search experience to Gmail. Studies show that users save time when they search for an email instead of categorizing it into a folder. In Gmail, you can quickly find the exact message you want by typing keywords into the search box, or you can rely on the program's search autocomplete to specify the attributes you want (try typing 'from:[sender]' or 'has photos').

Remember a couple weeks ago when we discussed Ivy Bridge CPUs running a lot hotter than Sandy Bridge CPUs when overclocked? Well Loyd Case found a site that did a little experimentation and solved the mystery. (Hint: it's the awful thermal compound Intel uses.)

We're joined by Facebook expert Mark Sullivan to talk about the impact of Facebook's IPO, which should happen today. I think we're all in agreement that the company is way overvaulued, and will start snapping up other companies when the big flood of money comes in. With any luck, they'll avoid Yahoo's object lesson in how not to spend money.

If the results of a new PCWorld/Macworld survey are any guide, the forthcoming iPhone 5 with LTE is going to be a big hit.

Large numbers of people plan to buy or upgrade to the first 4G iPhone, many of them citing the new LTE wireless technology as a main reason, the survey suggests.

I lot of headlines this week proclaimed that Intel's new Ivy Bridge processors actually run a lot hotter than the Sandy Bridge processors they're set to replace. The truth is not that simple. We'll break it down for you in the podcast.

We also discuss the merits of Nvidia's new GeForce GTX 690 graphics card, which is essentially two GeForce GTX 680 cards for the price of...well...two.

PC owners know that every computer has a unique assortment of components, applications and peripherals. Nevertheless, certain things--including a host of common PC problems and mysteries--are part of the shared experience of computer ownership. The editors at PCWorld have seen and solved hundreds of PC mysteries, ranging from balky printers to diffident video players to persnickety file attachments. Most of the answers to these tech questions are simple and straightforward, so we've taken the liberty of compiling some of the most frequently encountered PC mysteries into a single list that we'll update regularly. Following each question we provide a short response that summarizes what we know. For a more detailed explanation and some helpful tips, click the links in each answer.

Why is [Program X] always running when I start my PC?

Windows maintains a list of programs that automatically run every time you boot up your computer. Some of these startup programs (such as antivirus utilities) are beneficial, but many of them are not necessary and can slow your PC as they run automatically in the background. Speed up your boot time by disabling Windows startup programs.

Though the Radeon HD 7750 is meant to be an upgrade that anyone can afford, and to be a GPU that works in any PC, the faster 7770 model reviewed here has some restrictions. While it runs modern games 25 percent to 30 percent faster, it also requires enough room in your system for a double-wide card and a six-pin PCIe power plug, which not all computers have. It’s fast enough for modern games, but just barely.

Nobody likes spending more than they have to, but serious PC gamers will probably want to pony up more than the $139 asking price for the Radeon HD 7770. There’s a vast difference in performance between graphics cards priced around the $200 level and this one. The 7770 is even a fair bit slower than its closest competitor in price, the GeForce GTX 560. We can look at an individual game, like Crysis 2, and see that the Nvidia card is a good 20 percent faster.