Just been reading threads about the Lagging issue with these FS laptops. I have a Amilo M 1437G (ATI x700, and P50EA0 mobo). I used to experience a few "lagging issues" occasionally, however now I have no problems with the laptop at all, well in XP anyway, Vista drivers dont seem to work 100%.
I did find that when running NHC (for undervolting) and with the "monitor Hard Drive SMART and Temp" I got lagging when playing mp3s, but after disabling that all is fine.
If anyone wants to know anymore on my setup (drivers, BIOS ver etc.) just ask.
Happy New Year too!
Amilo A M1437G