Problems with sleep feature on using Fedora 14 KDE on Toshiba Laptop

[Ramon]

I am having a real annoying issue with my new Fedora 14 KDE dual boot 
system on my Toshiba Satellite A505-S6980 laptop. Sometimes when I click 
on leave and then the sleep option it goes to sleep perfectly. However, 
about every other time it instead goes to the loading Fedora screen that 
just has the logo and freezes. When it does that no keys I press do 
anything, I end up having to turn off the laptop and re-turn it on to 
get it restarted. Thankfully this isn't Windows so rebooting doesn't to 
long, but it is still an annoyance does anybody know why this is 
happening. Also what command can I use to check what apps are handling 
my power management options, I know Power Devil is one, but I think I 
may have downloaded another one too when I was attempting to obtain the 
additional packages I thought I wanted or needed that didn't get 
automatically installed from my livecd installation. Thank you in 
advance for your help, this is one thing I truly do enjoy about using a 
Linux system, the ability to get support like this, it makes me feel 
like I'm part of a community.. Hopefully I can learn more about Linux so 
I can also help others in the future.
Ramon