Went from 32bit To 64bit, Now Have Problems

[s1mp13m4n]

I was using Ubuntu 9.04 32bit and decided to upgrade to 64bit. I have WinXP on the same drive. Grub loads and I can choose which OS I want but now Ubuntu 9.04 64bit when loading gives me several errors and will not boot. What is my next move? I could go back with 32bit, it worked fine but I wanted up use my 4GB of RAM, that is why I wanted to try 64bit. Here are my specs, thanks for the help.

Processor a Main Circuit Board b
2.40 gigahertz Intel Core2 Duo
64 kilobyte primary memory cache
3072 kilobyte secondary memory cache
64-bit ready
Multi-core (2 total)
Not hyper-threaded Board: MSI MS-1719x Ver 1.000
Bus Clock: 200 megahertz
BIOS: American Megatrends Inc. 080014 03/11/2008
Optiarc DVD RW AD-7530B [CD-ROM drive]
NVIDIA GeForce 8600M GT [Display adapter]
Acer V223W [Monitor] (22.0"vis, s/n LC3080324285, December 2008)
Seiko Epson 17.2 [Monitor] (17.2"vis)
Realtek High Definition Audio

[Moop]

How did you upgrade to 64 bit? Did you do a clean install of 64 bit?

[s1mp13m4n]

I backed up the files I wanted to save like documents, music, etc and then did a clean install from the alternative version of the 9.04 64bit version. I downloaded the image from Ubuntu's website. :)

[earthpigg]

what errors does it give you?

if it flashes by to quickly to write down/remember, a digital camera could come in handy.

[s1mp13m4n]

It is funny, I rebooted the laptop and was ready with the digital camera and I selected Linux from Grub and the screen went blank and nothing happened, no flashing hard drive light. I am wondering if it is not a corrupt install and I will just have to start over. :(

[earthpigg]

is windows still working fine?

have you run scan disk on the windows partition, and fsck on the linux partition (using live cd) to rule out hardware failure?

[s1mp13m4n]

Yes, the hardware turned out fine. It is about a year old laptop that I use at home in a small space. Windows works perfect. All was fine when I was using 32bit Ubuntu 9.04 but for some reason 64bit does not want to work even though I have a 64bit system. :(