i am back on SFP since i had to sell my cards 3 years ago due to finacial problems! It was hard to give them away - but i solved my problems and now i am back! And i am glad to be back

I never gived up making music and started to work with several native softwaresynths (Reaktor, Arturia ARP2600 & Moog Modular). I really like this devices and I want to keep working with them under Scope. And here are my problems:
I can start the devices (Reaktor/ARP2600/Moog Modular) in standalone-mode, but i cant setup them. When i try to set the driver to Asio Scope the devices crash (mostly directly, somtime after a minute or so). Sometimes my computer even restarts himself.
In Cubase VST32 I have also big problems. I can load them as VSTi, but i can play them clearly only as long as they are not visible at screen. When i bring them to screen the sound gets horrible and the devices lag hugely.
Here is my general setup and a few things I have already done to solve the problems.
First at all my computer isn't the best to work with pulsar/scope


i have tried to set the sample-rate to 44khz...i have replaced the asio 24 bit source/dest with the "default" asio dest/source (in SFP)...i have checked out other latency-setting.....without any effect. The problems already exists.
Has anybody got an idea what i can do? Do the problems depend to my "bad system"? Befor i switched to creamware few days ago i worked with a M-Audio Audiophile 24/96 Soundcard without any problem under 24 bit/48Khz.
I am glad for any help or suggestions i can get here!!
J.Lee