News: Tiger Doesn't Work With Cisco VPN
Tiger is not compatible with the Cisco VPN Client. The fix is supposed to be out in May. Until then if you need VPN do not upgrade to Tiger. If you would still like to try it out you can repartition your hard drive and dual boot Tiger, or install it onto another drive such as an iPod. I have had bad luck with the non destructive repartitioning software on the Mac. If you've used something that works reliably and quickly please let me know. The best solution I see right now is to backup your data and wipe the drive and then create the partitions.