Job application in the Netherlands: tweaking AMD system...

Hi All,A while ago I have purchased some new hardware devices to upgrade my PIII 800. However, with the new configuration I still do not see a huge improvement of performance and I am convinced that I have made some mistakes during the setup. However, I do not have the time and knowledge to invest a lot in improving the system. I am looking for somebody in the Netherlands who would be able to help me out and have a look at my system and point me out to some improvements.My current configuration:Main PC:AMD 2100+512DDR 2700Asus A7N8X deLuxeAudigy SoundBlasterLeadtek GeForce 4 Ti4200 128Mb80Gb 7200rpm Maxtor 4Mb Cache19" Cornerstone MonitorWindows XP ProfessionalLatest Audigy driverNvidia drivers installed, tried several of themFSUIPC latest versionNorton Antivirus disabledMostly I use:- FS Sky World in conjunction with FS Meteo (on second PC)- Flight Deck Companion- PSS 747 with Posky KLM aircrafts- Dreamfleet 737 with KLM texture- Lago Schiphol 2002- the Netherlands Scenery- Lago Terramesh- Target fps: 40- AI: 30%- Lago Scenery Enhancer disabledIn flight I am able to get this 40fps. However:Main issues that makes me think I have something done wrong:- I always notice a small delay in showing the menus in FS2002.- When flying for a long time (5-10 minutes) changing the view results in a long cpu time (3-10 seconds) and short freeze (couple of seconds). The HD runs heavily although I have DDR memory enough (appr. 280Mb in use with FS2002)- enormous changes in fps during flight, 10-40 band- When parked at a gate with PSS747 I get 10fps. Is this Normal?Is there anybody that can advise or help me? Normally I search intensively through these forums and hardware forums, but now I found the time to ask you.Thanks in advance for your help!