More Laptop DVDRW/CDRW combo problems.

[Fozzie]

Hey guys, been having a few problems with my laptop.

When I first recieved my laptop it had a QSI CDRW/DVD SBW242U. This started having major problems reading CDs and DVDs, so I had to get it replaced.

Replaced it with a Slim Type DVDRW SOSW-852S in November. This has now started to develop the same problem. It can read some CDs, CDRs, DVD+R's, but will only spin twice for a DVD Video (EDIT: or DVD Software), then have the laser head slam into the side of the drive...

EDIT: I have tried a CD Lens cleaner, but that didn't help at all. Been very tempted to just take the thing out of the laptop, open it up and blow into it as hard as I can, but but that would do more harm than good (I guess).

Seeing as it has happened with two drives, I am hoping that it is a dust problem, and hoping just as much that it can be fxed (not buying a third drive for my laptop in under a year).

Thanks in advance.

Fozzie.

Sys. Specs.
P4 2.8GHz
512MB RAM
ATI Mobility Radeon 9600/9700 Series
WinXP Pro