Cisco WAN :: 3825 Router Has Necessary Hardware Requirements For New Version Of IOS

I am trying to copy a new IOS image to a 3825 router.   I have verified that there is significantly more free space in flash than is needed to accommodate the image (83 MB free, new IOS is 34 MB).  I have also verified that the router has the necessary hardware requirements for the new version of IOS, though it is a moot point with this issue.  When I try to copy the image from either TFTPd32 or the Solarwinds TFTP server,the copy gets to about 97% and then shows a mixture of timeouts and out-of-sequence packets (.'s and o's) before telling me the copy job timed out.  I have tried bumping both the "timeout" and "max retransmit" on TFTPd32 to 2-3 times their defaults, but it made no difference.  The router and my laptop are connected to the same 3550.  I have also tried two FTP servers but all I get is "Protocol error" on the router when I try to use either.  I see the following in the TFTP debugs: [code]