ADVDisplay BIg Problem...! Please help

Hi all, I have installed the latest of Pete Downsons ADVDisplay. Whenever I activate it and dock it somehwere within my 2D panel of any plane, I get a realy nice problem! The screen flickers as when it fold and unfolds itself, the mouse cursor becomes funny little and doubled and all my graphiccard gets confused. When I disable ADVDisplay, it is all ok. I have already installed many different nvidia drivers from www.guru3d, but that didnt help. I can remember the time when it was just functioning normal. I have a Epox 8k3a mainboard, AOpen GF4 4200 550MHz, 768 MB DDR 2100 and Windows XP Pro SP1. Do you need more info about my system? So, can you tell me what is going on? Can it be that it has something to do with latest windows update of Directx9 via automatic windows update function??? Some configuration I should better not have activated with RivaTuner2? I have installed the nvidia detonator driver 42.90 Regards,T-A-H MultiMedia Productionshttp://www.t-a-h.com[email protected] TB 2400; Epox 8k3a+; 768MB 2100 DDR; Aopen GF4 4200 550MHz; CH-YOKE + Peddals; 17" Dell Monitor; WinXP Pro (German Version); FS2k2 pro (German Version)