I've to agree with Whitedragon. The issue is to use a new ROMPAQ. A little while ago i did a update with the new ROMPAQ and since then i've having troubles with my USB. Keyboard and mouse didn't function propely anymore after the update. Also i've experience several weird problems that i can't related to anything. So my advice to you is, be carefull if you are updating your ROMPAQ. Check indeed your fan's like Instronics said, also check your RAM.

Good luck!!