USB External Device and Tiger

I just upgraded to Tiger from Panther. When booting I had to have my Plextor drive turned on to be recognized. (USB 1.1) With Tiger, same procedure is followed, sometimes computer boots fine, sometimes I get the dread multi-language black box prompting a restart. Eventually computer does come up, but either way, it crashes when a CD burn is complete.
There are no issues when computer is booted with burner off, other than the fact I can't burn a disk because the device is not recognized.
??

dennisdster
As far as I know Plextors are not directly
supported
by OS X. you may want to download
http://www.versiontracker.com/dyn/moreinfo/macosx/2510
0>patch burn which will help apple oriented
applications "see" it. BTW, how do you connect the
drive to your mac?
Thanks for your response!
The URL you provided for the patch gets "The page you
tried was not found"
The drive is connected via USB at the back of the
tower.
Excuse the Sunday morning stupidity - burner is connected via SCSI

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