No BlauK. Lately I'm usually running a bunch of stuff all at the same time. For fun I launched Excel, Thunderbird, icq, Visual Studio, Firefox, Word and MS Paint while having the TE both in the foreground and back ground (in XP.) The bad thing is this isn't unusual combination for me but so far nothing really bad has happened.
Peak CPU usage hit 50% briefly with application changes, memory usage is holding steady at 410 MB.
Intel P4, ATI 9800 Pro, Soundblaster, NIC card.