I just upgraded from Vegas 3 to Vegas 5 and I'm having a problem with exporting to MPEG2. I cannot get the 'custom' option box to come up when exporting to MPEG1 or MPEG2. This worked fine with V3, but all of a sudden it's not working. Also, in V3 the first use of the MPEG plugin would initialize the registration dialog box and this does not happen in V5. What could be the issue here? Any ideas? BTW I'm running V5 on Win XP1 SP1 on an Athlon 2400+ with 512Meg of RAM.