Ubuntu 9.04 Jaunty on External HDD

[ArmenianLeader4]

Hey, when i recently upgraded from Windows XP to Jaunty, my first attempt was to simply install ubuntu on my external HDD so I could continue to dual boot on my Dell XPS M140 Laptop. Well, the process was successful, but afterwards, I tried to boot XP off my internal HDD, and GRUB came up with an error message telling me that the XP disc image was corrupted. It doesn't really matter anymore, I just put ubuntu on my internal and made it my main OS, but why would installing Jaunty on my external corrupt the Operating System on my internal?

[ArmenianLeader4]

Any responses?

[ChronoSphere]

It shouldn't corrupt anything. It probably has to do with the boot order of USB and internal drives getting mixed up.