Vista - Windows Photo Gallery Slideshow

For whatever reason, my computer has, until recently, registered my hardware
was being substandard. As such, use of Photo Gallery slideshow has run in
basic mode, without access to themes ans such, simply straight up slideshow.
Recently, though, i scanned my computer, and it properly registered my
hardware. This has, however, caused Photo Gallery to automatically enter the
high resolution mode, running full specs. However, I do not like this. I
prefer the basic mode version. I know this may seem wierd, but does anyone
know how to disable advanced mode, and just use basic mode, without screwing
with my specs?