WRT54G - random disconnect

Honest, I did look through a few pages for a similar issue/resolution. Found some similar but not exactly the same.  We've had our router for about 9 mos and it is now acting up.  When the router is idle and we're not on the net for a couple hours (typically at night or when we leave the house) it disconnects.  We have to unplug the router, wait to count of 5 or 6, plug it in and it reconnects to the DSL after about 1 minute.  Excellent signal for all our PC's while the router is doing what it is supposed to - but let it sit at idle for a couple hours -- and it shuts down.  A friend told us we must be having power surges or ?? and that we should get a UPS.  I kind of doubt this is the issue because this little quirk only started the last month or so.  Before we take this as the solution, run out and buy the UPS - thought we'd give these boards a try.
Thanks for any input.

What is the firmware on the router ?
Click here for updated list.
For information on upgrading the firmware on the linksys routers :
http://linksysfirmwares.googlepages.com/upgradingfirmware
For information on wireless security :
http://linksysfirmwares.googlepages.com/wirelesssecurity
When you turn the router on in the morning, first turn the modem, wait for 10 secs and than the router.
C | EH
linksyshelp.blogspot.com

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