Xwindows locking up on boot

[Randolph Jones]

Still in the throes of this problem; now boot will fail twice in a row 
on occasion
below are the errors in the log
Any advice would be appreciated.
TIA
rfjones
boot log
hdparm:  HDIO_SET_DMA failed: Operation not permitted
rc.sysinit: Setting hard drive parameters for hda:  succeeded

System log
kernel: ** driver failed to call pci_enable_device().  As a temporary
May 19 08:05:42 rfj kernel: ** workaround, the "pci=routeirq" argument 
restores the old
May 19 08:05:42 rfj kernel: ** behavior.  If this argument makes the 
device work again,
May 19 08:05:42 rfj kernel: ** please email the output of "lspci" to 
bjorn.helgaas at hp.com
May 19 08:05:42 rfj kernel: ** so I can fix the driver.
Xorg X11 log
(WW) Open APM failed (/dev/apm_bios) (No such file or directory)
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