R can't write to csv or RData file

I'm trying to write the contents of a data frame to an RData file. ``` > save(collector2, file="collect2.RData") Error in save(collector2, file = "collect2.RData") : error writing to connection ``` As a 2nd option I tried using: ``` > write.csv(collector2, file="collect2.csv", row.names=FALSE) ``` This executes and creates a file, but it is empty. Here's the data frame I'm trying to write: ``` > head(collector2) adQuer1 rowid adQueravg 1 2485651|2284211 132000001 0.0000000 2 20888541|7 132000002 0.0152358 3 20888541|7 132987430 0.0152358 4 20888541|7 132595958 0.0152358 5 20888541|7 132621111 0.0152358 6 20888541|7 132464740 0.0152358 > str(collector2) 'data.frame': 17639105 obs. of 3 variables: $ adQuer1 : Factor w/ 7241603 levels "1000467|130715",..: 430440 229948 229948 229948 229948 229948 229948 229948 229948 229948 ... $ rowid : num 1.32e+08 1.32e+08 1.33e+08 1.33e+08 1.33e+08 ... $ adQueravg: num 0 0.0152 0.0152 0.0152 0.0152 ... ``` Here is my system info: ``` > version _ platform x86_64-unknown-linux-gnu arch x86_64 os linux-gnu system x86_64, linux-gnu status major 2 minor 15.0 year 2012 month 03 day 30 svn rev 58871 language R version.string R version 2.15.0 (2012-03-30) nickname ``` Any suggestions?