corrupt nvram

Hi! I've had a problem with web history (under QoS) on Asuswrt-Merlin 3004.388.8_4 (but this problem has persisted under several different upgrades!). The web history contains "garbled" entries, or entries containing a lot of different symbols. Using the web-interface on the Asuswrt-Merlin...

On Friday I noticed an alert on my router for new firmware so hit download. Part way through the process I noticed I was still connected to my VPN so disconnected; Bad move. :( Needless to say the download aborted and I subsequently manually downloaded the firmware from the Asus support site...