Whitewaterkel's dashboard

My wife and I both have new XPS 1330's. I bought mine directly from Dell. We bought hers from Best Buy. My 1330 is fine, hers get this error message, but does not mention the 90W part. We were sold different P/N power adapters. When she used my power adapter, no issues on her laptop. When I use her power adapter I get the same error message, which tells me its something in the adapter itself. The P/N on my adapter (the good one) is XK850. Her adpater (the bad one) P/N is NX 061. Both units were both purchased brand new. Frustrating, huh? We just figured it was some junk from Best Buy, but both adapters are made in China, but different PN's, etc. Who knows?