hi all.. i'm using windows 7 ultimate RTM 64 bit (ZUKONA) with WOW7.. i can't download anything through IDM (Internet Download Manager) ver. 5.17.5. but, i can download from IDM 1 time, at 4th first trial. (that was downloading office 2007 update, coz i want to slipstream my office 2007's dvd) --> so i assure u all, it has nothing to do with my firewall. i can download from mozilla firefox 3.5.1, but (i dont know how to describe it well to u all), the download progress didn't show, but at the end (when it finished), then the file is downloaded.. but, still, sometimes, the file is corrupt.. i don't know what's wrong with it.. last time i'm on windows vista ultimate 32 bit SP2 RTM, i can download with any program.. wether it's with firefox, opera, IE, or IDM. FYI, right now, i can download with FreeRapid Downlo*der 0.82. but, i'm using it to download rapidshare's files.. n last time in vista, of course, i can use these program as well.. pls, someone, tell me what's wrong with my win7? my machine & softwares: Acer Aspire 4520 (Turion X2 2.0GHz + DDR2 667MHz 2.5GB) Windows 7 Ultimate RTM 64-bit Kaspersky Internet Security 2010 18.104.22.1683 Java 64 bit + 32 bit (ver. 6 update 15) K-LMcodec 5.0.0 quicktime (latest version) latest adobe shockwave & adobe flash (32-bit) Office 2007 Enterprise SP2 mozilla firefox 3.5.1 opera 9.64 FreeRapid Downlo*der 0.82 Internet Download Manager 5.17.5 Yahoo messenger (latest version) everest ultimate (latest ver.) ultra iso (latest ver.) n i already full update win7 from microsoft update. i want to try in win7 ultimate 32 bit, about these problem.. but i want to read other's feedbacks first, to make sure, wether the problem is conflict in my system, or something else.. so i have to reinstall in these aspire 4520, to test it.. thx.. sorry for my english..