comment out freeze, hide test,  wait for new API
revise cell-reference test with 3.0 API
revise image test case with 3.0 API
revise autofilter, protection with 3.0 API
revise formula test with 3.0 API
remove "conditional formatting" in formula test file 2003 for it causes
errors.
review operation test with 3.0 API
revise cell text test with 3.0 API