Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
I was hoping to eliminate the mouse pad on my desk to free up some space and also improve the performance and accuracy of my mouse.  Oh well.  My desk is wood grain and the mouse works poorly over the wood grain.  I have no problems if I lay down a piece of paper but that defeats my purpose of eliminating the mouse pad.  Also, I found (as many others have) that the mouse performance through the USB port is not as good as continuing to use the PS-2 port.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: D: negative