I bought the Ambient Weather WS 1090 at the end of August. It worked great until yesterday. I wasn't getting any readings, just all black lines. I moved it away from the computer (it says in the manual that computers can interfere with it) and within a couple minutes I was getting some readings, but not all. I reset it and left the batteries out for about 15 minutes then put the batteries back in. I was getting all readings within a couple minutes but the indoor temp is very inaccurate. It was reading 189.6F and now says 189.4F. I've looked all through the book and online but I'm not finding any info. All I can find is about the outdoor temp being inaccurate, but mine is right. Any suggestions?