No drive detected - Sonic DigitalMedia LE v7

Did a dumb thing.

My Dell 4700 (XP Home, SP2) came with a half-backed version of Sonic DigitalMedia (Sonic DigitalMedia LE v7 (Build: 2.1.6a).  I tried to format a CD and the software didn't acknowledge the CD-RW disk so instead of simply trying another disk, I installed a copy of Easy CD Creator 4 I used on my Win98 machine. Despite Easy CD Creator 4 install warning that software wasn't compatible with my system, completed the install anyway and got a Startup error message: "A CD-Recording driver is installed that might cause stability problems, including problems shutting down and problems using a CD-DVD drive. The Driver will be disabled."

To my point, I solved the problem by uninstalling Easy CD 4, adjusting registry settings concerning "Upperfilters" and "Lowerfilters" and used a product called ROXIZAP per instructions at <http://support.microsoft.com/kb/314060/EN-US/> and <http://boards.support.roxio.com/roxio/board/message?board.id=0041&message.id=12030#M12030>

Now, my Sonic DigitalMedia program doesn't detect my DVD/CD-RW drive (model: hldtst rw/dvd gcc4481b) despite uninstalling and reinstalling the Sonic product.

Interestingly, my OS (WinXP Home SP2) does recognize the drive AND the Sonic Drive Letter Access (DLA) module works fine.

Anybody with any idea how I can tweak some setting to get Sonic DigitalMedia to re-recognize my drive? I have a feeling a registry tweak is needed.

Thanks in advance.