USB hangs boot up

After installing drivers for my Canon MP170 I can't boot up with USB devices connected. At the moment I have an i-Rocks USB hub with a Sony Ericsson w960 and the MP170 connected to it.
During the boot up the white initial screen takes really long time to finnish and when it reaches the blue screen boot up halts. Removing the USB hub makes the white screen pop up for 2-5 seconds and then it continues the boot and boots up completely.
I'm guessing removing these drivers would solve the problem. However I'm not a very experienced mac-user and don't know where they are located.
If this problem can be resolved in any other way I'm open for suggestions.

The following details my procedure for removing the Canon PIXMA drivers.
1. Open System Preferences > Print & Fax. Highlight the Canon printer in the Printer list and click the minus ( - ) button.
2. Hold Control key and click in the empty Printers list. Click on Reset Printing System. Note that this will delete other printer queues if they exist.
3. Close Print & Fax
4. Go to Library > Printers > Canon and delete the contents of the BJPrinter folder.
5. Go to Library > Receipts and delete the Canon driver package file, if one exists. The file name will show Canon MP170 xxx.pkg
6. Go to Library > Preferences and delete the Canon folder.
7. Go to HD > Users > Shared > Canon and delete the BJPrinter folder if it exists.
8. Empty the Trash
With the driver files removed restart the Mac and see if the problem still exists with the MP170 connected via USB.
PaHu

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