what goat said. this same basic problem happened to me a couple of times w/my 2006 macbook pro 17" also (early version of leopard, maybe 10.5.3 or so). solution is to SHUTDOWN your laptop instead of sleep/hibernate.
All or part of this article may be confusing or unclear. (Wikipedia)

Current projects:
DONE: NTML (based on Paragon's MML), NTrans screen transition effects (for now)
My ATBS Tutorial :: Stupid Little Battle System
http://www.myspace.com/apolloluxmusic · Sphere common files package
Something something something DARK SIDE...Something something something COMPLETE... (Family Guy)

Current projects:
DONE: NTML (based on Paragon's MML), NTrans screen transition effects (for now)
My ATBS Tutorial :: Stupid Little Battle System
http://www.myspace.com/apolloluxmusic · Sphere common files package
Something something something DARK SIDE...Something something something COMPLETE... (Family Guy)