well probably no one here has tried this combination yet, i know i wouldnt if it was up and running without failures, but i still like to ask what you people think. i will install the old 2000i version next week and will have to pick a windows version for the new computer that i still have to buy. i do not want to make this tread a debate about the software but rather what windows do i need ? i know XP is recommendet for this old software but i have also hear story's about some having it running failure-free on VISTA. i guess my choices are XP or 7 and ofcourse if prefere Windos7 but if it cant make Tradestation run it is out of the question. i guess 7 would be alot faster "IF" it would be a good marriage. anyone ?