Exact same problem!!
here's how it was resolved, first of all, I wasn't inly being held accountable for my time but was also not trusted with ANYTHING she wanted her paws on it all, even when she didn't understand it.
I started to include her in EVERYTHING!! She got a daily work report, several questions by phone and then I asked her to perform tasks by phone when she needed things done.
If she wanted to know what I did all day, I'd just phone her and ask her to login in order to update the Inoculate client, then I'd notify her of new virus threats. THen I'd send her performance reports, then... She got EVERYTHING thrown at her, "for her interest'. This gave her a sense that she didn't want to know what I did each day. If I cleaned a workstation, I'd call her and say I was just performing routine maintenance, was her computer screen in need of cleaning and when could I get at her tower and keyboard to clean them. she loved the virus information daily. What's new, what not to open etc. (At least I think she did)
It took a year, then she started to give me some more rope, asked less questions etc.
Bottom line though, you are en employee. You are responsible for ensuring that your emplyer gets value for money and that they are assured you are working. A daily work log, get more and more detailed, offer technical stuff she wouldn't understand etc. will help. My former operations manager had NO idea about networking, she now feels she does. also by sending her hoards of irrelevamt info, she did pick up a general idea of what's involved when you say, update workstations. She had a new appreciation for my position by the time I left and is now much easier on the new tech.
She has a right to question your every move and ask you to justify very second you are being paid.
If you feel it is unjust, get a job as a labourer or union worker, you will soon learn about overdone accountability.
Throw it in her face, worst case scenario, she asks yo not to. Then she can't cmolpain that you're not working.