Graphics Problem - Vaio PCG-SR7K

[TonyWilks]

Hi:   I am new to Debian Linux - I have installed Official Debian GNU/Linux 3.1 from 14 Binary CDs onto a Sony Vaio PCG-SR7K laptop and the system is up and mainly running OK.   However - whatever I do I cannot get the graphics screens to display 1024 x 768 - it's locked into 800 x 600 resolution and screen quality is poor. The Vaio uses a Neomagic MagicMedia NM2380 - 256XL+ graphics card - and it worked just fine with Windows 2000 that I have replaced with Debian.   There seems to be a bunch of stuff written about this type of display problem - but as a newcomer to Linux I am looking for a definitive guided method to fix this situation. Any help and step-by-step directions you can give will be much appreciated.   Best regards,   Tony Wilks Stourbridge UK.