You might consider this a good excuse to trim down your Poser installation, and only install what you use on a regular basis, into Poser 5. One thing many people neglect to mention is bump maps. Poser 5 uses jpg bump maps, while Poser 4 uses BUM bump maps. BUM bump maps just don't look right in Poser 5. Besides those pesky BUM maps are huge! I dumped Poser 4 entirely, and reinstalled everything for Poser 5, and use external Runtimes.