PC hangs after installing Wireless modem

Just installed a Linksys Wireless router and a Dlink
Wireles PCI Adapter. After completing system
configuration the PC hangs. When searching task list
(Ctrl-alt-del), the Windows Explorer and Internet Explorer
are not responding. When I close the Windows Explorer, the
Internet Explorer launches fine and I'm on the web. It
seems there might be a resource conflict, but not sure.
I've reinstalled several times, changed IRQ settings for
the wireless device, changed PCI slots for device, turned
off all startup programs (safe-mode), and still have the
same problem.

In short, after setting up the wireless configuration, the
PC continues to hang. Closing the Windows Explorer will
unfreezes the PC temporarily.

I installed the wireless device on two other PCs (both
Win98)running through the same router and it appears to
work fine. Only see problems on PC with WinME.

Any ideas.....