I used to have some issues with it but kinda dealt with it (mostly because I used an external mouse most of the time)... I did install bios version A08 when it was released though, and it does feel a lot better.Link to Dell Bios A08 for XPS M1530
- released 3/25/08
Always use caution if you're going to flash your bios though... make sure your laptop is connected to AC power. If doing it from Windows, make sure you're not running any other programs when you do it and reboot when prompted. Doing it from a bootable disk is more reliable but more inconvenient... I've never had any issues flashing from Windows though (with Dell anyway... Acer is another story).
Anyway, hope this helps.