problem with IOS

hi everybody I have problem with my 2620, I upgraded an IOS version to 12.4.3 and from this point my router on every start decompressing the image. I made all configuration than copy to startup-config but always the same.

here is print from sh ver: ____________________________________________________________________________________________________ Router#show version Cisco IOS Software, C2600 Software (C2600-ENTBASEK9-M), Version 12.4(3), RELEASE SOFTWARE (fc2) Technical Support:

ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

Router uptime is 19 minutes System returned to ROM by reload System image file is "flash:c2600-entbasek9-mz.124-3.bin"

This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer and use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption. Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately.

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Cisco 2620 (MPC860) processor (revision 0x200) with 62091K/3445K bytes of memory. Processor board ID JAD051009BP (589753981) M860 processor: part number 0, mask 49

Configuration register is 0x2102 _______________________________________________________________________________________________________________________

thank you WZ.